For me, every player always expects to win, the house advantage is known and the player still accepts the conditions, so how do windows of opportunities to win open in a casino? They only focus on that, when a player wins and not when he loses or the amount of money he loses, the casino will always have the advantage and there is nothing to do here, people think that since it is a game with probability fairness they will have more chances of winning and it is not like that.
The thing is a lot of gamblers are not aware of the house advantage. Or at least they refuse to know about it. They will continue to live in ignorance. They will continue to hope that they can win and beat the casino.
I saw some people from another forum (reddit) say that being aware of the house edge ruined some casino games for them because it’s all they think about now. Knowing the house still wins no matter what may ruin it for you. But those are the conditions we have to accept as you said. If we don’t like it, we can quit gambling.